When the provider can block the IMEI, making theft utterly useless, why would thief bother...?
Oh wait. Cell phone service providers here are actually too happy theft happens so often, since they don't have to replace the device, won't let you cancel their all-too-profitable 3-years plans without you paying a big fat penalty, and may even activate some brand new contracts with the thief wanting to use his catch! And Apple will sell more $800 phones.
I mean, what's NOT to like here?
One of the reasons why, as a general population, we don't trust police officers too much is they seem to be more keen at ticketing you for overdue parking meter than catching petty thieves, even when information is handed to them on a silver plate. The latter only gives honors, whereas the first one brings in cash, that's the reason why.
Yes, I am talking from personal experience. I had four cell phone stolen, had IMEI for each of them, and all hooked to a carrier who can geolocate them. It just needed a law enforcement supoena to disclose location. Officer's reasons for refusing the supoena? They didn't want to find some innocent dude who probably bought the phone thinking it was legitimate. Same when my bike was stolen. I knew exactly who did it, they knew the guy also, but refused to go ask him, although theft was performed less than two hours before, probably before the guy could sell it.
As good citizens, collaborate when asked to, but never place any faith in police officers. Most often not corrupt, but useless in low-profile cases.